All guppies shipped will be between 2-4 months of age.  I use the US post office for shipping.  Buyer can choose either priority mail or express mail.  Priority mail usually takes 2-3 days to deliver, but may take more.  Therefore, there is no guarantee of live arrival, though rarely is there a problem.    Express is usually 1-2 days to deliver and comes with a live arrival guarantee.  Heat pack and insulated box included for either option when weather dictates.
I prefer payment by Paypal, but will accept post office or Walmart money orders.  If you wish to pay with a money order, please contact me for mailing address.   My email address is  Thanks, Bruce